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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

I was able to reproduce this bug.  The panic not only happens at install
time, but also if you install the affected kernel on an already
installed system.

I'm in the process of bisecting the issue now.   The bug also exists in
upstream 4.2 final.

* Panic happens with latest Vivid kernel(3.19.0-28)
* Does not happen with 3.19.0-15
* Does not happen with upstream 3.19.8-ckt6
* Panic happens with upstream 4.2.

I'll update the bug with my progress.

** Changed in: linux (Ubuntu Wily)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Wily)
       Status: Confirmed => In Progress

** Also affects: linux (Ubuntu Vivid)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Vivid)
       Status: New => In Progress

** Changed in: linux (Ubuntu Vivid)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Vivid)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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https://bugs.launchpad.net/bugs/1495983

Title:
  [Hyper-V] kernel panic occurs when installing Ubuntu Server 15.10 x32

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Vivid:
  In Progress
Status in linux source package in Wily:
  In Progress

Bug description:
  Attempting to install the latest build of Ubuntu Server 15.10 (Wily
  Werewolf) x32 on Hyper-V, after beginning installation a kernel panic
  occurs. The console log from the serial output is attached.

  http://cdimage.ubuntu.com/ubuntu-server/daily/current/

  I tried with the builds from 14th and 15th of September with the same result. This bug does not affect x64 builds. 
  Tried to start the installation with different resources with no effect, kernel panic always occurs no matter the VM settings.

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